Journal article
Monitoring Cochlear Health with Intracochlear Electrocochleography during Cochlear Implantation: Findings from an International Clinical Investigation
S O'Leary, E Mylanus, F Venail, T Lenarz, C Birman, F Di Lella, JT Roland, B Gantz, A Beynon, M Sicard, A Buechner, WK Lai, C Boccio, B Choudhury, VD Tejani, K Plant, R English, R Arts, C Bester
Ear and Hearing | LIPPINCOTT WILLIAMS & WILKINS | Published : 2023
Abstract
Objectives: Electrocochleography (ECochG) is emerging as a tool for monitoring cochlear function during cochlear implant (CI) surgery. ECochG may be recorded directly from electrodes on the implant array intraoperatively. For low-frequency stimulation, its amplitude tends to rise or may plateau as the electrode is inserted. The aim of this study was to explore whether compromise of the ECochG signal, defined as a fall in its amplitude of 30% or more during insertion, whether transient or permanent, is associated with poorer postoperative acoustic hearing, and to examine how preoperative hearing levels may influence the ability to record ECochG. The specific hypotheses tested were threefold: ..
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Grants
Awarded by University of Melbourne
Funding Acknowledgements
This work was supported Cochlear LTD, Sydney, Australia. A consultant medical writer was engaged by the sponsor to support the final draft version of the article.K. P., R. E., and R. A. are Cochlear employees. B. G. is a consultant to Cochlear Corporation and EarLens Corporation. F. V. has been granted by the << Fondation pour l'Audition << (RD-2020-10). Stephen O'Leary was funded by the National Health and Medical Research Council (Australia), GNT0628679 and GNT1078673. Stephen O'Leary and Christofer Bester's department of Otolaryngology at the University of Melbourne received research grants from Cochlear Ltd. All the other authors have no conflicts of interest to disclose.